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50 SX
50cc2-stroke1 cylLiquid-cooledKick start
About the 50 SX
KTM's entry-level 50cc two-stroke racing minicycle with an automatic centrifugal clutch, for children of roughly 4 to 9 starting to race.
- Family
- SX Minis (50–105)
- Model years
- 2001 – present
- Also known as
- KTM 50, 50SX, KTM 50 SX Factory Edition, 50 SX Pro Senior LC
- Trims
- Factory Edition
14 sources
- motorcycle.com › detail
- ktm.com › technical-specifications
- bikez.com › ktm_motorcycles
- motorradundreisen.de › 50-sx-pro-senior-lc-19379
- motorcycle.com › detail
- ktm.com › motocross
- ktm.com › motocross
- justbikes.com.au › 987053
- totalmotorcycle.com › 2009-KTM-50SX
- bike-parts-ktm.com › 50_MOTO
- bike-parts-ktm.com › SX
- bike-parts-ktm.com › SX
- ktm.com › 2027-ktm-50-sx
- totalmotorcycle.com › 2009models-KTM-50SX
Generations
2024 – present
50 SXCurrentNew steel frame with a height-adjustable two-piece subframe and WP XACT AER fork.
- Engine
- 50cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- single-speed
- Fuel
- Carburettor
2009 – 2023
50 SXCompletely new chassis and engine for 2009; cast-aluminium swingarm added in 2020.
- Engine
- 49cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- single-speed
- Fuel
- Carburettor
2006 – 2008
50 SXThe liquid-cooled automatic 50 carried over from the 50 SX Pro Senior LC under the new 50 SX name.
- Engine
- 49cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- single-speed
- Fuel
- Carburettor
2001 – 2005
50 SX Pro Senior LC- Engine
- 49cc
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- single-speed
- Fuel
- Carburettor
Year specs
- Engine
- 50 cc
- Bore × stroke
- 39.5 × 40.7 mm
- Cooling
- Liquid-cooled
- Starter
- Kick start
- Gearbox
- single-speed
- Fuel system
- Carburettor
- Horsepower
- —
- Torque
- —
- Dry weight
- 42.5 kg
- Wet weight
- —
- Seat height
- 653 mm
- Ground clearance
- 233 mm
- Wheelbase
- —
- Fuel capacity
- 2.3 L
- MSRP
- $5,099
engine_cc computed from the cited bore x stroke.
1 source
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